2 textures not showing in object mode
The Viewport shading depends on your settings. Usually in solid mode you want to model or sculpt, so by default textures are not shown.

Assing the texture(s) to your material and then either press the button marked blue. This way you can already get a more accurate preview, e.g. if you are combining several textures. Or for a simple preview of a single texture, klick the orange dropdown and then the yellow texture button. You may need to click on the texture that you want to show in the node tree of your material.